wilson



Pamnted Aug. 22, 1916.

2 SHEETS-SHEET I.

w. wi WILSON. WELL BORLNG APPARATUS. APPLICATION FILED 111AY29,I9I4.

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WH" NE SS W, W. WILSON.

WELL BORING APPARATUS.

APPUCWON man mAYzg, 1914,

Faented Aug, 22, 1916.

2 SHEETS-SHEET 2.

WITNESSES:

,1S Afrfmmav 5 and State of California, have invented new' WILLIAM 'W'. WLSON, 0F LOQANGELES, CALIFQENM..

Specification of Letters Patent.

vWarm;-isoarive Arranarus.

i. t f 5M Patenten Italia.. it.

Application filed May 29, 1914. Serial No. 841,785.

To all 107mm 'it'mag/ concern.:

ff'* Be it known that I, WrLLiAM W. WILSON., a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and useful Improvements in Nell-Boring Apparatus, of .which the following is a specification.

This invention relates to the art of well boring or well drilling, and more particularly to well borers such as are-provided with rotary tops or master wheels whereby the rotation of the boring tool or string of pipe or the like extending upwardly from the same to the rig is caused, such rig being employed in raising and lowering the boring tool and string in performing the operations incidental to drillin.

In United States Letters Patent No. 17064270, issued June 10, 1913, to Arthur G. Willard and Charles E. Vtilcox, for Well boring,r apparatus, a combination ot' parts and features is disclosed constituting the well boring apparatus to which the present invention more particularly relates. ln this patent separate means of operative connection are disclosed 'for application to the string, and to the rotary top or table, each in substitution for th'e other, and whereby the string maybe either rotated in couple with the table or held in any particular point of elevation;V means being provided upon the string for Withdr: ving the rotation imparting means upon he elevation of the string so as to permit the other means of operative connection tobe substituted therefor between the string and the table, holding up the string during the making-up or breaking-up of the same, as by the addition or withdrawalfof further joints or sections of pipe or tubinff. T hat patent refers to the use of devices known as slips for temporarily holding a string or`-pipe or the like at any particular point ot elevation.

In accordance with the present invention, and as an improvement upon or departure from orfurther specific development of the invention of said prior patent', l provide, for use under conditions makinaf the saine advantageous or preferable, a combination of features comprisingl such slips or 'the like; and means independent of the table between which and the String the slips are disposed to hold up the string, and likewise to hold up the drive bushing or rotation imparting means; and such slips are disposed, in use7 in the working location or the rotation .inrparting means, in substitution therefor, or disposed at a point more or less'remotc from the Zone within which the rotation impart lng means act. At' any rate7 the combinationof features comprising the present in vention contemplates the application of the slips. or means of operative connection for holding up the string', during the makingup or brealringmp of the same., between the string and features of installation independent of the rotating top or table or master wheel.

With the above and other general objects and characteristics in view and entering into the invention, the invention consis s in the novel and useful provision, formation, construction, combination and association of part-s, members and features, all as hereinn after described, shown in the drawings, and finally pointed out in claim. l

ln the drawings: Figure l is a vertical sectional view of well boring apijnaratus provided ivith the features of improvement constituting the invention, parte being in elevation, the rotation imparting means loeing shown elevated by means upon the string, and the string and rotation impr-rting means being shown held so elevated by.

the other means of operative connectiona or slips; Fig. 2 is a transverse sectional view taken upon the line n-ire, Fig. i, and loolring in the direction of the appended arrows; Fig. 3 is a view similar to Fig. l.; the

rotation imparting means being frown position and the other means oi operative' connection, or slips, having' been removed; parts shown in Fig. l boing omitted and parts sectioned forclearness of illustration; Fig. it is a detail transverse sectional. View,

taken upon the line :rt-M, 3, and ioolr ing in the direction of the appended are rows; Fig. 5 ils a view similar to Fig. l, oj'r'f a modified 'form of provision., construction, arrangement and combination ot" parte, members and features; and Fig. (S is a de tail transverse sectional view taken on the line .r6-a2, Fig. l, and looking in direction of the appended arrows. Figs. 2, #l and 6 are upon diminished scale.

Corresponding parts in all the figures are designated by the same rence characters.

Referring' with particule.;l .ty 'to the drawl ings, and to Figs. l to et and, (E thereof., it. designates a rotary top or table shown as supported rotatively, by anti--;i"rictimi rollers ilo or the like 7, upon a base or frame B, d designating suggestively any preferred type er organization of means for imparting rotation to the table; all in accordance with standard or preferred practice. The frame B is shown as having a vertical bore or opening b provided in an annular upward extension'S of the base or frame B, which lits within the annular top or table A which latter rotatively surrounds such extension 8.

C designates the mouth of the well hole within which the boring operationv is to be performed by a suitable boring tool (not shown) connected with and operated by the string of which the pipe section D is a part; another string portion being shown at E -nd connected with the string portion or pipe section D by a collar or the like F and which may constitute means upon the string for elevating the rotation imparting means G upon the elevation of the string. In the/ specific for'm ofl construction and combination of features shown in the drawings the 'boring ,rotation imparting means Gr is directly engaged and elevated by the string member E which constitutes a driving stem for the string.

g designates interlocking means whereby the mean of operative connection or rotation imp irting means G- may be coupled with the `rotating top ortable A so as to impart the rotation thereof to the string. H designate the other means of operative connect-ion aaapted to be applied to the string, as tothe ljoint or portion D, to suspend the weight oj' the same and hold up the string after the withdrawal of the rotation imparting means which is produced upon the elevation of the string; to the end that the string may be broken up, or that other joints 'or sections may be added thereto, in accord@ ance with Ithe requirements of the drilling operation from time to. time. These means H are shown as comprising slips l1, which are i'ntnoduced` between the annular or tubular extcnsional of the base or frame B and the string, such as the joint or member D thereof.

The stiing member or driving stem E is shown as-having a longitudinal bore or duct .10 whereby circulation may be maintained through the same and the, remain'ng portion ofthe string for the usual purpl ses in drilling operations; and as having further latchannels 11 with which interlock tongues l2upon the bushing 13 constituting the meansI of operative connection G, the channels vl1 being interrupted slightly above the bottom of the stem E; pins 14 being adapted to be passed through a top flangev 13 upon the buslijng 13 ,and into holes orl openings 15a in the table, to constitute the interlocking devices or means g. 'The stern or string member E is free to play vertically through the'y bushing 13'whlle in rotative couple through such bushing with the table A.

The slips h readily engagewith and sup= port the string by impingement of serrations l5 -or the like upon the outer surface of the string member or joint, scat-hat the string may be held at any desired p'oint of elevation, such impingement being effective at any portion of the section or joint. l

The bushing 13a is shown as formed in separate parts which may be bolted together at 'iianges 13b, and by bolts 13, to permit of assemblage; the channels l,11 terminating slightly above the lower end of the stem E, so that the drive bushing may be lifted out by the tongues 12thereof, upon the elevation of the string as above set forth. I

When the drive bushing and string have been suitably elevated, the slips h are introduced into the space between the string and the tubular or annular extension 8 of the lower the string, permitting the drive bushing 13 to come into position for interlocking again-with the rotary table; whereupon the drilling operation may be continued.

Referring to liigs.` 5 and 6, the sameprovision and general combination and association of parts and features is shown as in Figs. 1 to t inclusive, with theexception that the base or frame K is not provided with any tubular or annular extension such 'Y as shown `in the other figures; andthe slips f1, constituting the means of operative connection H are shown as applied to the string member D and to a support L which is mounted upon a frame or base M upon which the base or frame K is superposed; both frames K and M being mounted at the mouth of the well hole C. Uprights or frame members 17 support .the frame K above the frame M. The mode of use and method of operation and Aadvantages are the ame with respect to this modified form of construction land organization, with the exception that instead of applying the slips directly at or to the frame which directly supports the rotary top or table, such slips or means of operative. connection H are applied at a point more or less remote from such table-supporting frame, and to a frame or support L distinct and separate from the frame or support K upon which the table is direelly 'carried and rotated. Thus, in this niodihed torni of construction and 0rg'anization. the slips are utilized in a working` zone entirely distinct from and more or less remoto troni thev Working Zone of the means (i or the operative connection coinprisiwng the drive bushing 13.

ln accordam'e with the present invention, the weight ofthe string is not imposed upon the table or master wheel `through the slips, hut is directly imparted to the framewhich ysupports the table or to soule other frame or structural feature, without transmission through the tahle.

It is manifest' that many variations and inmlitications niay he made, with respect to l the showinv' in the dr-.nvinrs` and the s )ecifio description in the specification, without departing from a tan' interpretation of the 1nvention.

Having thus disclosed my invention, I claim and desire to secure by Letters Patent:

In improvements of the character disclosed, the combination, with a rotary table, and a boring string; of means for supporting the string adapted to engage the saine at any point of its length and to so support the string independently of the table; said table being provided with a base upon which the table is rotatively supported; said means for supporting the string being applied to the string and to said base; said string supportingl means consisting of slips.

In testimony whereof, I have signed my name to this specification in the presence of 35' tivo subscribing witnesses. l

WILLIAM W. WILSON. Witnesses:

ALFRED H. DAEHLER, RAYMOND Ives BLAKESLEE. 

